http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-101973936-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_4f0ad8476aa4a80345a4710c801c441a |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09K11-06 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07D213-85 |
| filingDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2012-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78cfd427680169ce49418edf91987261 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bea9b0d8bd836e01278ce2d1892d568b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_25212e9648b52e2f386acaec9768b4ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e8fc7f588330a0248934a8d2072bdd9 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d3cc2e267ab687a64d7111d3b8b4520f http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2efa629b307b68db6b7726758bd12b2a http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_32fd5e95402cefc9e55ee42c97b12b31 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_383f165984fc0ee727642c37ff110e8f |
| publicationDate | 2012-02-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-101973936-B |
| titleOfInvention | Preparation method of pyridone derivative |
| abstract | The invention relates to a preparation method of a pyridone derivative. The pyridone derivative is prepared from malononitrile and benzoylacetone as raw materials. The preparation method comprises the following steps of: firstly, preparing a solution of benzoylacetone, hexamethyl disilazane and acetic acid and a solution of benzoylacetone, malononitrile and acetic acid; placing the solution of benzoylacetone, hexamethyl disilazane and acetic acid in a four-neck flask under the conditions of electric heating, water bath, agitation and water circulating condensation and under the protection of a nitrogen and argon mixed gas, and dropwise adding the solution of benzoylacetone, malononitrile and acetic acid to perform a chemical reaction; filtering by suction, washing, centrifugally separating and drying in vacuum to produce light yellow powder; and recrystallizing and purifying through dimethyl sulfoxide to finally prepare a light yellow long block pyridone derivative crystal. The product emits yellow light, the yield of the product is high and can reach 89.6%, the purity of the product is good and can reach 99.9%, and the product is in a single-crystal structure. |
| priorityDate | 2010-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
| Predicate | Subject |
|---|---|
| isDiscussedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID416195619 http://rdf.ncbi.nlm.nih.gov/pubchem/compound/CID2784088 |
Total number of triples: 21.